Mbh 12.127.1a

"'Bhishma said, "Then that best of Rishis, viz., the regenerate Rishabha, sitting in the midst of all those Rishis, smiled a little and said these words: 'Formerly, O tiger among kings, while travelling among sacred places, I arrived, O lord, at the beautiful asylum of Nara and Narayana. There lies the delightful spot called Vadri, and there also is that lake in the firmament (whence the sacred Ganga takes her rise).[381] There the sage Aswasiras, O king, (always) reads the eternal Vedas. Having performed my ablutions in that lake and offered with due rites oblations of water unto the Pitris and the dogs, I entered the asylum. Within that retreat the Rishis Nara and Narayana always pass their time in true pleasure.[382] Not far from that spot I repaired to another retreat for taking up my abode. While seated there I beheld a very tall and emaciated Rishi, clad in rags and skins, approaching towards me. Possessed of the wealth of penances, he was named Tanu. Compared, O mighty-armed one, with other men, his height seemed to be eight times greater. As regards his leanness, O royal sage, I can say that I have never beheld its like. His body, O king, was as thin as one's little finger. His neck and arms and legs and hair were all of extra-ordinary aspect. His head was proportionate to his body, and his ears and eyes also were the same. His speech, O best of kings, and his movements were exceedingly feeble. Beholding that exceedingly emaciated Brahmana I became very cheerless and frightened. Saluting his feet, I stood before him with joined hands. Having informed him of my name and family, and having told him also the name of my father, O bull among men, I slowly sat myself down on a seat that was indicated by him. Then, O monarch, that foremost of virtuous men, viz., Tanu, began to discourse in the midst of the Rishis dwelling in that asylum upon topics connected with Righteousness and Profit.